32449779892 has 18 divisors (see below), whose sum is σ = 58138470978. Its totient is φ = 15847563312.

The previous prime is 32449779889. The next prime is 32449779893. The reversal of 32449779892 is 29897794423.

It can be written as a sum of positive squares in only one way, i.e., 21905776036 + 10544003856 = 148006^2 + 102684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32449779893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2186343 + ... + 2201134.

Almost surely, 2^32449779892 is an apocalyptic number.

It is an amenable number.

32449779892 is a deficient number, since it is larger than the sum of its proper divisors (25688691086).

32449779892 is a wasteful number, since it uses less digits than its factorization.

32449779892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387567 (or 4387522 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 64.

The spelling of 32449779892 in words is "thirty-two billion, four hundred forty-nine million, seven hundred seventy-nine thousand, eight hundred ninety-two".